JavaScript Operators Explained: Assignment, Arithmetic, and Beyond

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JavaScript operators are symbols or keywords that instruct the computer to perform specific operations on values or variables, known as operands. They are broadly classified by functionality — including assignment, arithmetic, comparison, and logical operators — and by the number of operands they take. Assignment operators store values in variables, with shorthand forms like +=, -=, and *= combining assignment with arithmetic. Arithmetic operators handle mathematical tasks such as addition, subtraction, and multiplication, with the + operator also capable of concatenating strings. Notably, most arithmetic operators auto-convert string operands to numbers, except when the values are non-numeric, in which case the result is NaN.

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